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A subnet mask is a 32-digit number determining the possible range of IP addresses available in a network. One subnet mask limits how many IP addresses can exist on a single network, but multiple subnet masks can be used to organize an entire network into sub-subnets.
One popular way of representing a subnet mask is by using Classless Inter-Domain Routing (CIDR) notation. The notation is simply a count of how many network bits (which are set to 1) there are within the subnet mask. So if there are 8 bits in the subnet mask, the CIDR number is 8. When it comes to notation, the CIDR number will usually follow the IP address and will be separated from it by a slash.
Broadly speaking, the purpose of subnetting is to take a network and split it into multiple smaller networks to free up more public IP addresses and to simplify network security and management since networks are now segmented.
IPv4 and IPv6 subnetting are quite similar when it comes to their basic IP subnetting principles. Both should be thought of as binary and both can be simplified with the use of an IP subnet calculator. The only significant difference between the two comes down to scale and, to a lesser degree, their complexity. Unlike IPv4 addresses, IPv6 addresses are 128-bit in length. That includes 16 bits specifically designated for subnetting, which come after the most significant 48 bits that are already allocated to the network identifier. That means the most important 64 bits represent the network identifier, while the less important 64 bits are representative of the host identifier.
The process of creating a supernet is called routing aggregation or supernetting. It was introduced to solve the problems of rapidly growing routing tables and IPv4 address pool exhaustion. The main advantages of the process are fewer CPU power and memory requirements for processing and storing routes since there are now fewer routes to begin with.
A supernet calculator is a form of IP calculator that focuses just on the supernet and not on the individual subnets that it may contain. When you input networks into the IP calculator, it will summarize the supernet and exclude any invalid networks.
The process of subnetting simply means creating a subnetwork (or subnet) within a network. All of the network devices and interfaces within a subnet can communicate directly while routers facilitate communication between multiple subnets. An IP range calculator can deliver insights into individual subnets to simplify management.
SolarWinds was founded by IT professionals solving complex problems in the simplest way, and we have carried that spirit forward since 1999. We take pride in relentlessly listening to our customers to develop a deeper understanding of the challenges they face. Our digital agility solutions are built to help companies of any size accelerate business transformation today and into the future.
Have you wondered if the letter you are READING- or the letters you are WRITING - are inadvertently perpetuating implicit biases that could reduce the likelihood of the candidate getting a fair chance at the new opportunity? This one pager summarizes some facts and ideas about letters of recommendation. You can also put your own letters through this online gender bias calculator. The calculator was inspired by presentations on research organized by AWIS; several articles and blog posts share personal reactions to learning of this phenomenon as well as the tool.
Across industries, enterprises are embracing modernization by leveraging hybrid cloud and AI to digitally transform with resiliency, performance, security, and compliance at the forefront, all while remaining focused on delivering value and driving more sustainable business practices. According to a recent study by IBM, 42% of CEOs surveyed pinpoint environmental sustainability as their top challenge over the next three years1. At the same time, the study reports that CEOs are facing pressure to adopt generative AI while also weighing the data management needs to make AI successful. The increase in data processing required for AI workloads can present new challenges for organizations that are looking to reduce their GHG emissions. With more than 43% of CEOs surveyed already using generative AI to inform strategic decisions, organizations should prepare to balance executing high performance workloads with sustainability.
To help clients respond to these challenges, the IBM Cloud Carbon Calculator is designed to quickly spot patterns, anomalies and outliers in data that are potentially associated with higher GHG emissions. Based on technology from IBM Research and through a collaboration with Intel, the tool uses machine learning and advanced algorithms to help organizations uncover emissions hot spots in their IT workload and provide them with insights to inform their emissions mitigation strategy2.
"As part of any AI transformation roadmap, businesses must consider how to manage the growth of data across cloud and on-premise environments. This is especially critical today as we see organizations face increasing pressure from investors, regulators, and clients to reduce their carbon emissions," said Alan Peacock, General Manager, IBM Cloud. "For IBM, reducing environmental impact to help create a more sustainable future is a top priority and we are committed to helping clients achieve both sustainability and business goals. With the AI-enabled IBM Cloud Carbon Calculator, we're helping clients better understand the greenhouse gas emissions associated with their IT workloads and giving them the insights to adjust their strategies and further their sustainability objectives."
Clients are already using the IBM Cloud Carbon Calculator to address their sustainability goals. This includes e.tres, an Argentinian ecommerce platform, who is using the dashboard to measure greenhouse gas emissions.
"The way people shop is changing, and we're committed to helping our customers deliver frictionless online shopping experiences backed by high levels of sustainability. As we help our customers power their digital businesses with our innovative e-commerce platform, sustainability is at the center of everything we do, with our e3Eco solution. With the IBM Cloud Carbon Calculator, enabled by AI, we can boost the sustainability of our clients' operations, their technology and logistics shipments, so any ecommerce portal can become sustainable by measuring and offsetting greenhouse gas emissions." said Diego Gorischnik, CEO of e.tres.
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